SN74F373NSR

Overview

The SN74F373NSR is an octal D-type transparent latch manufactured by Texas Instruments, belonging to the 74F logic series. It features eight non-inverting outputs with three-state capability and is housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 7 ns at 5 V, a low-level output current of 32 mA, and a high-level output current of -3 mA. It supports surface-mount installation and functions reliably within an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides eight-bit data storage via D-type transparent latch architecture
• Features three-state outputs for effective bus line driving applications
• Utilizes Schottky diode clamping on inputs to mitigate ringing effects

Applications

• Bus-oriented memory mapping systems
• Register banks for temporary data storage
• Parallel-to-serial conversion circuits

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging configuration intended for automated assembly processes. Ensure that the component meets RoHS compliance standards required for your manufacturing environment. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring fast switching speeds characteristic of the F logic family. It is suitable for applications needing high drive capability with 32 mA low-level output current. Consider the 20-SOIC package dimensions for PCB layout constraints and ensure the operating temperature range aligns with the environmental conditions of the target application.

Part Context

This integrated circuit is part of the broader SN74F373 product family produced by Texas Instruments. It serves as a standard solution for digital logic applications requiring octal latching functionality. The device is widely utilized in general-purpose digital systems where reliable data retention and bus isolation are critical operational requirements.

Replacement Considerations

SN74F373NSRE4

FAQ

What is the function of the input clamping diodes?

The SN74F373NSR includes Schottky diodes on its inputs to clamp transient voltages, thereby preventing damaging signal overshoot during high-speed switching operations.

How does the three-state output benefit bus systems?

The three-state outputs allow the latch to be disconnected from the bus when not selected, enabling multiple devices to share the same data lines without electrical interference.